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Enozertinib
Enozertinib
CAS 2489185-38-6
MF C35H42F2N8O3 MW660.8
N-[2-[4-(4-cyclopropylpiperazin-1-yl)piperidin-1-yl]-5-[[6-[(3R)-3-(3,5-difluorophenyl)-1,2-oxazolidin-2-yl]pyrimidin-4-yl]amino]-4-methoxyphenyl]prop-2-enamide
- N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide
- N-[2-[4-(4-Cyclopropyl-1-piperazinyl)-1-piperidinyl]-5-[[6-[(3R)-3-(3,5-difluorophenyl)-2-isoxazolidinyl]-4-pyrimidinyl]amino]-4-methoxyphenyl]-2-propenamide
- N-[2-[4-(4-cyclopropylpiperazin-1-yl)piperidin-1-yl]-5-[[6-[(3R)-3-(3,5-difluorophenyl)-1,2-oxazolidin-2-yl]pyrimidin-4-yl]amino]-4-methoxyphenyl]prop-2-enamide
epidermal growth factor receptor tyrosine kinase inhibitor, antineoplastic, ORIC-114, ORIC 114, DU24UP8R94
Enozertinib (formerly ORIC-114) is an investigational, orally bioavailable, and brain-penetrant dual EGFR/HER2 inhibitor developed by ORIC Pharmaceuticals. It targets cancers with exon 20 insertion and atypical EGFR mutations. Its core profile highlights its ability to cross the blood-brain barrier.
How it Works
Enozertinib acts as an irreversible, mutant-selective covalent inhibitor. By blocking overactive EGFR and HER2 signaling, it induces cell death and inhibits tumor growth. Because it penetrates the central nervous system (CNS), it is uniquely suited to treat both primary brain tumors and brain metastases—a common complication in non-small cell lung cancer (NSCLC).
Enozertinib is an orally bioavailable, central nervous system (CNS) penetrating, mutant-selective covalent inhibitor of epidermal growth factor receptor (EGFR; ErbB1) and human epidermal growth factor receptor 2 (HER2; EGFR2; ErbB2) alterations, including exon 20 insertion (Ex20ins) mutations, with potential antineoplastic activity. Upon oral administration, enozertinib selectively targets, irreversibly binds to and inhibits the activity of EGFR or HER2 insertions or mutations. This prevents EGFR/HER2-mediated signaling. This may induce cell death and inhibit tumor growth in EGFR/HER2-overexpressing tumor cells. Enozertinib is able to penetrate the blood-brain-barrier (BBB) and may therefore exert its activity against EGFR Ex20ins-driven CNS primary tumors and CNS metastases. The ErbB receptor tyrosine kinase family is involved in key cellular functions, including cell growth and survival. EGFR and HER2 alterations constitutively upregulate kinase activity.
SYN
https://drughunter.com/molecule/enozertinib-oric-114
SYN
PAT
SIMILAR SYNTHESIS
ADVT
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References
- Egfr inhibitor for treating cancers comprising atypical egfr mutationsPublication Number: WO-2024233313-A1Priority Date: 2023-05-05
- Fumarate, tartrate, malate, and citrate salts of an egfr inhibitorPublication Number: WO-2024096624-A1Priority Date: 2022-11-03
- Malonate and glycolate salts of an egfr inhibitorPublication Number: WO-2024097848-A1Priority Date: 2022-11-03
- Malonate and glycolate salts of an egfr inhibitorPublication Number: EP-4611902-A1Priority Date: 2022-11-03
- Fumarate, tartrate, malate, and citrate salts of an egfr inhibitorPublication Number: EP-4612147-A1Priority Date: 2022-11-03
- Fumarate, tartrate, malate and citrate salts of EGFR inhibitorsPublication Number: CN-120035590-APriority Date: 2022-11-03
- Heteroaryl derivative, method for producing same, and pharmaceutical composition comprising same as effective componentPublication Number: US-11466000-B2Priority Date: 2019-03-19Grant Date: 2022-10-11
- Heteroaryl derivatives, their preparation methods, and pharmaceutical compositions containing them as active ingredientsPublication Number: CN-115838369-APriority Date: 2019-03-19
- Heteroaryl derivatives, methods for their preparation, and pharmaceutical compositions containing them as active ingredientsPublication Number: CN-114605400-APriority Date: 2019-03-19
- HETEROARYL DERIVATIVE, METHOD FOR PRODUCING THE SAME, AND PHARMACEUTICAL COMPOSITION INCLUDING THE SAME AS AN EFFECTIVE COMPONENTPublication Number: BR-112021018704-B1Priority Date: 2019-03-19
- Heteroaryl derivative, method for producing same, and pharmaceutical composition comprising same as effective componentPublication Number: US-2022289733-A1Priority Date: 2019-03-19
- Heteroaryl derivatives, methods for producing heteroaryl derivatives, and pharmaceutical compositions containing heteroaryl derivatives as active ingredientsPublication Number: JP-7394298-B2Priority Date: 2019-03-19Grant Date: 2023-12-08
- Heteroaryl derivatives, methods for their preparation, and pharmaceutical compositions containing them as active ingredientsPublication Number: CN-113993866-APriority Date: 2019-03-19
//////////enozertinib, anax labs, epidermal growth factor receptor tyrosine kinase inhibitor, antineoplastic, ORIC-114, ORIC 114, DU24UP8R94
Emupertinib
Emupertinib
CAS 2472802-77-8
MFC30H26N8O MW514.6 g/mol
2-Pyrazinecarboxamide, N-[4-[4-amino-6-ethynyl-5-(3-quinolinyl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl]bicyclo[2.2.1]hept-1-yl]-5-methyl-
N-{4-[4-amino-6-ethynyl-5-(quinolin-3-yl)-7Hpyrrolo[2,3-d]pyrimidin-7-yl]bicyclo[2.2.1]heptan-1-yl}-
5-methylpyrazine-2-carboxamide
epidermal growth factor receptor tyrosine kinase, inhibitor, antineoplastic, TAS3351, TAS 3351, CU9YW8A5TP
Emupertinib is a potent, small-molecule epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor. It possesses selective antineoplastic potential for targeting specific mutant profiles of cancer cells. The compound was originally developed by Taiho Pharmaceutical Co., Ltd. under the developmental code TAS3351
Development Profile
The International Nonproprietary Name (INN) for this therapeutic chemical structure was formally proposed under the World Health Organisation (WHO) proposed INN list 132 in early 2025. Global research pipelines list the compound’s structural classification profile within non-small cell lung cancer (NSCLC) primary discovery programs. The drug currently remains a specialized compound designated for global laboratory research use only, rather than standard human prescription or veterinary clinical treatments
SYN
[0184][Example 37]
N-(4-(4-amino-6-ethynyl-5-(quinoline-3-yl)-7H-pyrrolo[2,3-d]pyrimidine-7-yl)bicyclo[2.2.1]heptan-1-yl)
-5-methylpyrazine-2-carboxamide The title compound was obtained by following the same method as in Example 29 (step 6), except that 5-methylpyrazine-2-carboxylic acid was used instead of 5-(fluoromethyl)-2-methylpyrazole-3-carboxylic acid used in Example 29.
(Step 4)
Synthesis of N-(4-(4-amino-6-ethynyl-5-(quinoline-3-yl)-7H-pyrrolo[2,3-d]pyrimidine-7-yl)bicyclo[2.2.1]heptan-1-yl)-5-methylpyrazine-2-carboxamide (compound (1))
[Chemical Formula 7]
It can be obtained by deprotecting the acetylene protecting group TES of N-(4-(4-amino-5-(quinoline-3-yl)-6-((triethylsilyl)ethynyl)-7H-pyrrolo[2,3-d]pyrimidine-7-yl)bicyclo[2.2.1]heptan-1-yl)-5-methylpyrazine-2-carboxamide obtained in Step 3 under basic conditions.
The reagents used to create basic conditions are not particularly limited as long as the reaction proceeds, but examples of inorganic bases include metal hydroxides (sodium hydroxide, calcium hydroxide, etc.), metal hydrides (lithium hydride, sodium hydride, etc.), and metal carbonates (sodium carbonate, potassium carbonate, cesium carbonate, calcium carbonate, lithium carbonate, magnesium carbonate, sodium bicarbonate, etc.). Examples of organic bases include metal alkoxides (sodium methoxide, potassium tert-butoxide, etc.), metal amides (sodium amide, lithium diisopropylamide, etc.), alkyl metal compounds (n-butyllithium, trimethylaluminum, etc.), alkylamines (triethylamine, tetramethylethylenediamine, piperidine, 1,4-diazabicyclo[2.2.2]octane, etc.), heterocyclic amines (diazabicycloundecene, pyridine, imidazole, etc.), and quaternary ammonium fluorides (tetra-n-butylammonium fluoride). Preferably, the reagent used to create basic conditions is a reagent that does not contain fluoride ions, more preferably a metal carbonate, and even more preferably potassium carbonate. These can be used alone or in combination to adjust the pH to the desired level.
The amount of reagent used is not particularly limited as long as the reaction proceeds, but for example, 0.1 to 50 moles can be used per mole of the starting compound (the compound represented by formula (II)). Preferably, 0.1 to 10 moles, and more preferably 0.1 to 2 moles.
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References
Substituted pyrrolo[2,3-d]pyrimidines as EGFR inhibitors
Publication Number: US-11786534-B2
Priority Date: 2019-02-15
Grant Date: 2023-10-17
- Crystal of 7h-pyrrolo[2,3-d]pyrimidine-4-amine derivativePublication Number: EP-4512808-A1Priority Date: 2022-04-22
- 7H-pyrrolo[2,3-d]pyrimidin-4-amine derivativePublication Number: KR-102645237-B1Priority Date: 2019-02-15Grant Date: 2024-03-07
- 7h-pyrrolo[2,3-d]pyrimidine-4-amine derivativePublication Number: WO-2020166680-A1Priority Date: 2019-02-15
- 7h-pyrrolo[2,3-d]pyrimidine-4-amine derivativePublication Number: US-2022160719-A1Priority Date: 2019-02-15
- 7H-Pyrrolo[2,3-d]pyrimidin-4-amine derivativesPublication Number: CN-113453764-BPriority Date: 2019-02-15Grant Date: 2024-04-16
- Brain-migrating tumor treatment agent containing, as active ingredient, n-(4-(4-amino-6-ethynyl-5-(quinolin-3-yl)-7h-pyrrolo[2,3-d]pyrimidin-7-yl) bicyclo[2.2.1]heptan-1-yl)-5-methylpyrazine-2-carboxamide or salt thereofPublication Number: WO-2025127108-A1Priority Date: 2023-12-13
- Crystals of 7h-pyrrolo[2,3-d]pyrimidin-4-amine derivativesPublication Number: WO-2025072720-A1Priority Date: 2023-09-29
- Crystal of 7h-pyrrolo[2,3-d]pyrimidine-4-amine derivativePublication Number: WO-2023204303-A1Priority Date: 2022-04-22
- Method for producing 7h-pyrrolo[2,3-d]pyrimidine-4-amine derivativePublication Number: WO-2023204304-A1Priority Date: 2022-04-22
- Method for producing 7h-pyrrolo[2,3-d]pyrimidine-4-amine derivativePublication Number: US-2025270214-A1Priority Date: 2022-04-22
///////emupertinib, anax labs, epidermal growth factor receptor tyrosine kinase, inhibitor, antineoplastic, TAS3351, TAS 3351, CU9YW8A5TP
Elisrasib
Elisrasib
CAS2914919-85-8
MFC32H35F6N7O3. MW 679.7 g/mol
2-[(2S)-4-[(7S)-7-[3-amino-2-fluoro-5-methyl-6-(trifluoromethyl)phenyl]-2-[[(2R,8S)-2-fluoro-1,2,3,5,6,7-hexahydropyrrolizin-8-yl]methoxy]-7,8-dihydro-5H-pyrano[4,3-d]pyrimidin-4-yl]-1-(2-fluoroprop-2-enoyl)piperazin-2-yl]acetonitrile
[(2S)-4-[(7S)-7-[3-amino-2-fluoro-5-methyl-6-(trifluoromethyl)phenyl]-2-{[(2R,7aS)-2-fluorotetrahydro-1Hpyrrolizin-7a(5H)-yl]methoxy}-7,8-dihydro-5H-pyrano[4,3-d]pyrimidin-4-yl]-1-(2-fluoroprop-2-enoyl)piperazin-2-yl]acetonitrile
Kirsten rat sarcoma viral oncogene homolog inhibitor, antineoplastic, D3S 001, PFW9YLB86H
Elisrasib (D3S-001) is a next-generation, orally available KRAS G12C inhibitor developed by D3 Bio that demonstrates high potency, sustained target engagement, and strong clinical activity in advanced solid tumors, including those resistant to first-generation inhibitors. As of April 2026, clinical trials show it has a 52% objective response rate (ORR) in G12C inhibitor-naive patients and a 30% ORR in refractory populations.
Key Aspects of Elisrasib (D3S-001):
- Mechanism of Action: It is a highly potent, covalent inhibitor that selectively binds the GDP-bound (inactive) form of the KRAS G12C mutant, effectively halting tumor cell proliferation and metastasis.
- Superior Efficacy: Preliminary data suggests elisrasib may be more potent than earlier inhibitors like sotorasib and adagrasib, providing higher target occupancy at lower doses.
- Clinical Performance (AACR 2026 Data):
- Naive Patients: 52% ORR, with a median duration of response (mDOR) of 16.5 months and median progression-free survival (mPFS) of 12.2 months at the 600 mg dose.
- Refractory Patients: 32% ORR, with a mDOR of 15.6 months and mPFS of 8.1 months.
- Targeted Cancers: Clinical trials are focused on KRAS G12C-mutant tumors, specifically non-small cell lung cancer (NSCLC), colorectal cancer (CRC), and other solid tumors.
- Safety Profile: The drug has shown good tolerability and a safe profile in early studies.
Elisrasib is in Phase 1/2 development and was highlighted for its promising results in treating patients with KRAS G12C-mutant tumors
Elisrasib is an orally bioavailable inhibitor of the oncogenic KRAS substitution mutation G12C, with potential antineoplastic activity. Upon oral administration, elisrasib selectively targets the KRAS G12C mutant and inhibits KRAS G12C-mediated signaling. This may halt proliferation and metastasis in susceptible tumor cells. KRAS, a member of the RAS family of oncogenes, serves an important role in cell signaling, division and differentiation. Mutations of KRAS may induce constitutive signal transduction leading to tumor cell proliferation, invasion, and metastasis.
- A Phase 1 Study to Assess Food Effect on the Pharmacokinetics of D3S-001 in Healthy Adult ParticipantsCTID: NCT07093398Phase: Phase 1Status: CompletedDate: 2026-03-25
- A Phase 1/2 Study of D3S-002 as Monotherapy or Combination Therapy in Adult Subjects With Advanced Solid Tumors With MAPK Pathway MutationsCTID: NCT05886920Phase: Phase 1/Phase 2Status: Active, not recruitingDate: 2026-03-23
- A Study of D3S-001 Monotherapy or Combination Therapy in Subjects With Advanced Solid Tumors With a KRAS p.G12C MutationCTID: NCT05410145Phase: Phase 1/Phase 2Status: RecruitingDate: 2026-03-12
PAT
SYN
Example 17
Step 6: Synthesis of Compound 17
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References
- Pyrimidoheterocyclic compounds and application thereofPublication Number: EP-4105211-A1Priority Date: 2020-03-12
- Pyrimidoheterocyclic compounds and application thereofPublication Number: US-2023151004-A1Priority Date: 2020-03-12
//////////elisrasib, anax labs, Kirsten rat sarcoma viral oncogene homolog inhibitor, antineoplastic, D3S 001, PFW9YLB86H
Elironrasib
Elironrasib
CAS 2641998-63-0
MFC55H78FN9O8 MW 1012.3 g/mol
1-[4-(dimethylamino)-4-methylpent-2-ynoyl]-N-[(2S)-1-[[(6S,8S,14S)-22-ethyl-21-[2-[(1S)-1-methoxyethyl]-3-pyridinyl]-18,18-dimethyl-9,15-dioxo-5,16-dioxa-2,10,22,28-tetrazapentacyclo[18.5.2.12,6.110,14.023,27]nonacosa-1(26),20,23(27),24-tetraen-8-yl]amino]-3-methyl-1-oxobutan-2-yl]-4-fluoro-N-methylpiperidine-4-carboxamide
- 1-[4-(dimethylamino)-4-methylpent-2-ynoyl]-N-[(2S)-1-[[(6S,8S,14S)-22-ethyl-21-[2-[(1S)-1-methoxyethyl]pyridin-3-yl]-18,18-dimethyl-9,15-dioxo-5,16-dioxa-2,10,22,28-tetrazapentacyclo[18.5.2.12,6.110,14.023,27]nonacosa-1(26),20,23(27),24-tetraen-8-yl]amino]-3-methyl-1-oxobutan-2-yl]-4-fluoro-N-methylpiperidine-4-carboxamide
- 3-Pyridazinecarboxylic acid, N1-[N-[[1-[4-(dimethylamino)-4-methyl-1-oxo-2-pentyn-1-yl]-4-fluoro-4-piperidinyl]carbonyl]-N-methyl-L-valyl-3-[4-[(2R)-1-ethyl-3-(3-hydroxy-2,2-dimethylpropyl)-2-[2-[(1S)-1-methoxyethyl]-3-pyridinyl]-1H-indol-5-yl]-2-morpholinyl]-L-alanyl]hexahydro-, (3–>2)-lactone, (3S)-
Kirsten rat sarcoma viral oncogene homolog inhibitor, antineoplastic, RMC-6291, RMC 6291, 942KVV5CJP
Elironrasib (RMC-6291) is an investigational, orally bioavailable, RAS(ON) G12C-selective inhibitor developed by Revolution Medicines that targets the active GTP-bound form of KRAS G12C. In Phase 1 trials, it showed significant promise in treating advanced KRAS G12C-mutated solid tumors, including non-small cell lung cancer (NSCLC). [1, 2, 3]
Key Clinical Trial Results (as of Oct 2025):
- Response Rate: 42% objective response rate (ORR).
- Disease Control: 79% disease control rate (DCR).
- Durability: Median duration of response was 11.2 months.
- Survival: Median progression-free survival was 6.2 months.
- Overcoming Resistance: Demonstrated efficacy in patients who had previously progressed on first-generation KRAS G12C(OFF) inhibitors.
Mechanism of Action:
Elironrasib acts as a covalent tri-complex inhibitor (TCI). It forms a complex with the intracellular chaperone protein cyclophilin A (CypA) and the active KRAS G12C(GTP) protein, effectively shutting down oncogenic signaling.
Development Status:
- Designation: It has received FDA breakthrough therapy designation for KRAS G12C-mutant NSCLC.
- Trials: Currently in Phase 1 clinical trials (e.g., NCT05462717) to evaluate safety, tolerability, and efficacy, both as a monotherapy and in combination.
- Target Population: Patients with KRAS G12C-addicted solid tumors.
Discovery of Elironrasib (RMC-6291), a Potent and Orally Bioavailable, RAS(ON) G12C-Selective, Covalent Tricomplex Inhibitor for the Treatment of Patients with RAS G12C-Addicted Cancers – PubMed27 Mar 2025 — This information does not constitute medical advice or diagnosis. Elirronrasib (RMC-6291) is a potent, orally bioavailable,
- Revolution Medicines to Present Updated Elironrasib Safety and Efficacy Data in Patients with KRAS G12C Non-Small Cell Lung Cancer Following Treatment with a KRAS(OFF) G12C Inhibitor22 Oct 2025 — This information does not constitute medical advice or diagnosis. Elirronrasib is a RAS(ON) G12C-selective inhibitor being develop…
Revolution Medicines
- Elironrasib May Overcome Resistance to Prior KRAS G12C Inhibition in Non-small Cell Lung Cancer
- OriginatorREVOLUTION Medicines
- ClassAntineoplastics; Morpholines; Piperidines; Pyridazines; Small molecules
- Mechanism of ActionKRAS protein inhibitors
- Phase I/IISolid tumours
- Clinical Phase UnknownNon-small cell lung cancer
- 30 Jan 2026Phase-I/II clinical trials in Solid tumours (Combination therapy, Late-stage disease, Metastatic disease) in USA (PO) (NCT07397338)
- 31 Oct 2025Elironrasib is still in phase I trial in Solid tumours (Late-stage disease, Metastatic disease, Monotherapy) in Australia, Italy, South Korea, Malaysia, Singapore, Spain, Czech Republic, Thailand and USA (PO, Tablet) (NCT05462717)
- 28 Oct 2025No recent reports of development identified for phase-I development in Solid-tumours(Late-stage disease, Metastatic disease, Monotherapy) in Australia, Italy, South Korea, Malaysia, Singapore, Spain, Czech Republic, Thailand (PO, Tablet)
Elironrasib is an orally bioavailable, covalent inhibitor of the active, guanosine triphosphate (GTP)-bound form of the oncogenic KRAS substitution mutation G12C, KRAS G12C(ON), with potential antineoplastic activity. Upon oral administration, elironrasib forms a tri-complex with the intracellular chaperone protein and immunophilin cyclophilin A (CypA) and KRAS G12C(ON). This tri-complex inhibits KRAS G12C(ON)-mediated signaling, which may inhibit tumor cell proliferation. KRAS, a member of the RAS family of oncogenes, serves an important role in cell signaling, division and differentiation. Mutations of KRAS may induce constitutive signal transduction leading to tumor cell growth, proliferation, invasion, and metastasis.
- Study of Elironrasib and Daraxonrasib as Monotherapies and Combination Therapy in Participants With Advanced KRAS G12C Mutant Solid TumorsCTID: NCT06128551Phase: Phase 1/Phase 2Status: RecruitingDate: 2026-04-23
- Dose Escalation and Dose Expansion Study of RMC-6291 Monotherapy in Subjects With Advanced KRASG12C Mutant Solid TumorsCTID: NCT05462717Phase: Phase 1Status: Active, not recruitingDate: 2026-04-08
- Study of RAS(ON) Inhibitors in Combination With Ivonescimab in Patients With Solid TumorsCTID: NCT07397338Phase: Phase 1/Phase 2Status: RecruitingDate: 2026-03-30
- Study of RAS(ON) Inhibitors in Patients With Advanced RAS-mutated NSCLCCTID: NCT06162221Phase: Phase 1/Phase 2Status: RecruitingDate: 2026-03-09
SYN
https://pubs.acs.org/doi/10.1021/acs.jmedchem.4c02313
SYN
PAT’
Part 5—Synthesis of Compound A—(12M)-1-(4-(dimethylamino)-4-methylpent-2 ynoyl)-N-((2S)-1-(((22S,63S,4S)-11-ethyl-12-(2-((S)-1-methoxyethyl)pyridin-3-yl)-10,10-dimethyl-5,7-dioxo-61,62,63,64,65,66-hexahydro-11H-8-oxa-2(4,2)-morpholina-1(5,3)-indola-6(1,3) pyridazinacycloundecaphane-4-yl)amino)-3-methyl-1-oxobutan-2 yl)-4-fluoro-N-methylpiperidine-4-carboxamide
| To a 50 L glass reactor was charged Compound 15 (1.91 kg, 1.0 eq) and DMF (13.9 kg). The mixture was agitated at 20-30° C. until all of the solids were dissolved. Compound 2 (1.70 kg, 1.2 eq) and DMF (3.8 kg) were charged. The mixture was agitated at 20-30° C. until all of the solids were dissolved. DIPEA (2.20 kg, 5.50 eq) was charged at 20-30° C. and the mixture was cooled to −20-−10° C. under agitation. Ethyl cyanoglyoxylate-2-oxime (Oxyma) (0.48 kg, 1.1 eq) was charged to the reactor and the reaction mixture was agitated at −20 to −10° C. for 30 min. PyBOP was charged as a DMF solution (1.89 kg dissolved in 3.62 kg DMF, 1.2 eq) to the reactor at −20 to −10° C. in </=1 h. The reaction mixture was agitated at −20 to −10° C. for 1-3 h. Reaction monitoring by HPLC showed the reaction was complete. |
| The crude product was then further purified by recrystallization with a mixture of EtOAc and n-Heptane to give purified Compound A as a white solid. |
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References
- Macrocyclic heterocycles and uses thereofPublication Number: US-2023339952-A1Priority Date: 2022-04-20
- Macrocyclic heterocycles and uses thereofPublication Number: WO-2023205701-A1Priority Date: 2022-04-20
- Methods for delaying, preventing, and treating acquired resistance to ras inhibitorsPublication Number: US-2023233569-A1Priority Date: 2020-06-18
- Ras inhibitorsPublication Number: US-2021130303-A1Priority Date: 2019-11-04
- Ras inhibitorsPublication Number: US-2023234929-A1Priority Date: 2019-11-04
- Ras inhibitors
- Publication Number: US-11566007-B2
- Priority Date: 2019-11-04
- Grant Date: 2023-01-31
////////elironrasib, ANAX LABS, Kirsten rat sarcoma viral oncogene homolog inhibitor, antineoplastic, RMC-6291, RMC 6291, 942KVV5CJP
Dirozalkib
Dirozalkib
CAS 1893419-37-8
MF C27H32ClN5O4S MW558.1 g/mol
5-chloro-2-N-(6-methyl-5-piperidin-4-yl-2,3-dihydro-1,4-benzodioxin-8-yl)-4-N-(2-propan-2-ylsulfonylphenyl)pyrimidine-2,4-diamine
anaplastic lymphoma kinase (ALK) inhibitor, antineoplastic, XZP-3621, XZP 3621, Xuanzhu Biopharmaceutical, 2FH56C28YT
Dirozalkib (XZP-3621) is a novel, potent, and highly selective ALK/ROS1 tyrosine kinase inhibitor developed by Xuanzhu Biopharmaceutical to treat advanced ALK-positive non-small cell lung cancer (NSCLC). It demonstrated high efficacy (47.4% ORR, up to 89.3% in naive patients) in clinical trials and is designed to overcome resistance to earlier inhibitors.
Key Aspects of Dirozalkib
- Indication: Treatment of adult patients with ALK-positive locally advanced or metastatic non-small cell lung cancer (NSCLC).
- Mechanism: Acts as a dual-target ALK/ROS1 tyrosine kinase inhibitor (TKI), effective against ALK fusion-positive cells and various resistance mutations.
- Clinical Efficacy (Phase I/II): In studies, the drug showed significant antitumor activity with an Objective Response Rate (ORR) of 47.4% and an 89.3% ORR in ALK inhibitor-naive patients at 500 mg/day.
- Safety Profile: No dose-limiting toxicities occurred; the maximum tolerated dose was 600 mg/day, with a recommended dose of 500 mg/day. Common adverse events included diarrhea.
- Status: As of early 2026, the NDA (New Drug Application) for Dexitinib (Dirozalkib) was accepted by China’s NMPA, with potential for further market expansion.
- OriginatorXuanzhu Biopharmaceutical
- Class2 ring heterocyclic compounds; Amines; Aniline compounds; Antineoplastics; Chlorinated hydrocarbons; Piperidines; Pyrimidines; Small molecules; Sulfones
- Mechanism of ActionAnaplastic lymphoma kinase inhibitors
- RegisteredNon-small cell lung cancer
- 26 Aug 2025Chemical structure information added.
- 22 Aug 2025Registered for Non-small cell lung cancer (Late-stage disease) in China (PO) – First global approval
- 22 Aug 2025Efficacy and adverse events data from a phase III trial in Non-small cell lung cancer released by Xuanzhu Biopharmaceutical
- A Phase I Study of XZP-3621 in Chinese Patients With ALK or ROS1 Rearrangement Non-small Cell Lung CancerCTID: NCT05055232Phase: Phase 1Status: CompletedDate: 2025-07-24
- Food Effect and Mass Balance Study of XZP-3621 TabletsCTID: NCT05034120Phase: Phase 1Status: CompletedDate: 2025-05-25
- A Study of XZP-3621 in Chinese Patients With ALK Positive NSCLCCTID: NCT05482087Phase: Phase 2Status: Unknown statusDate: 2022-08-01
- A Study to Evaluate and Compare the Efficacy and Safety of XZP-3621 Versus CrizotinibCTID: NCT05204628Phase: Phase 3Status: Unknown statusDate: 2022-01-24
PAT
PAT
Example 3 Preparation of 2-((5-chloro-2-((7-methyl-8-(piperidin-4-yl)-2,3-dihydrobenzo[b][1,4]dioxin- 5-yl)amino)pyrimidin-4-yl)amino)-N,N-dimethylbenzenesulfonamide (compound 3)
(5) Preparation of 2-((5-chloro-2-((7-methyl-8-(piperidin-4-yl)-2,3-dihydrobenzo[b][1,4]dioxin-5-yl)amino)pyrimidin-4-yl)amino)-N,N-dimethylbenzenesulfonamide
75 mg (0.114 mmol) of tert-butyl 4-(8-((5-chloro-4-((2-(N,N-dimethylaminosulfonyl)phenyl)amino)pyrimidin-2-yl)amino)-6-methyl-2,3-dihydrobenzo[b][1,4]dioxin-5-yl)piperidine-1-carboxylic acid ester was dissolved in dichloromethane (10 mL), and trifluoroacetic acid (1 mL) was added. The mixture was stirred at room temperature for 12 hours. The starting material disappeared as detected by TLC. Water (20 mL) was added, and the mixture was separated. The aqueous phase was extracted twice with dichloromethane (20 mL × 2). The organic phases were combined, dried over anhydrous sodium sulfate, and the solvent was removed by rotary evaporation. The crude product was purified by silica gel column chromatography (methanol:dichloromethane = 1:50) to obtain the final product (30 mg, yield 47.2%).
[0415]Molecular formula:
C26H31ClN6O4S Molecular weight: 559.08 LC-MS (m / z): 280.2 [ M /2+H ] +
[0416]
1H-NMR(400MHz,MeOD)δ:8.44(d,1H,J＝1.2),8.11(s,1H),7.86(d,1H,J＝1.2),7.56-7.60(m,1H),7.28-7.35(m,2H),4.26(s,4H),3.45-3.48(m,2H),3.06-3.15(m,3H),2.56-2.74(m,8H),2.17(s,3H),1.76-1.80(m,2H).
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References
- Polycyclic inhibitor of anaplastic lymphoma kinasePublication Number: US-10011592-B2Priority Date: 2014-09-29Grant Date: 2018-07-03
- Polycyclic inhibitor of anaplastic lymphoma kinasePublication Number: US-2018086745-A9Priority Date: 2014-09-29
- Polycyclic anaplastic lymphoma kinase inhibitorPublication Number: EP-3202765-A1Priority Date: 2014-09-29
- Polycyclic inhibitor of anaplastic lymphoma kinasePublication Number: KR-20170055555-APriority Date: 2014-09-29
- Crystal form of polycyclic anaplastic lymphoma kinase inhibitorPublication Number: US-2023348443-A1Priority Date: 2020-01-17
- Crystal form of polycyclic anaplastic lymphoma kinase inhibitorPublication Number: US-12441717-B2Priority Date: 2020-01-17Grant Date: 2025-10-14
- Polycyclic inhibitor of anaplastic lymphoma kinasePublication Number: US-2017240534-A1Priority Date: 2014-09-29
- Polycyclic inhibitor of anaplastic lymphoma kinasePublication Number: KR-101909404-B1Priority Date: 2014-09-29Grant Date: 2018-10-17
- Polycyclic anaplastic lymphoma kinase inhibitorPublication Number: WO-2016050171-A1Priority Date: 2014-09-29
- Pharmaceutical composition of anaplastic lymphoma kinase inhibitor and preparation method thereforPublication Number: WO-2025140560-A1Priority Date: 2023-12-28
- CRYSTALLINE FORM OF A POLYCYCLIC ANAPLASIC LYMPHOMA KINASE INHIBITORPublication Number: EP-4092021-A4Priority Date: 2020-01-17
- Polycyclic anaplastic lymphoma kinase inhibitor crystalline formPublication Number: CN-113135905-BPriority Date: 2020-01-17Grant Date: 2023-11-21
- Crystal form of polycyclic anaplastic lymphoma kinase inhibitorPublication Number: WO-2021143819-A1Priority Date: 2020-01-17
- Crystal form of polycyclic anaplastic lymphoma kinase inhibitorPublication Number: EP-4092021-A1Priority Date: 2020-01-17
/////////dirozalkib, anax labs, anaplastic lymphoma kinase (ALK) inhibitor, antineoplastic, XZP-3621, XZP 3621, Xuanzhu Biopharmaceutical, 2FH56C28YT
Dencatistat
Dencatistat
CAS 2377000-84-3
MFC24H27N7O5S MW 525.6 g/mol
4-[2-(cyclopropylsulfonylamino)pyrimidin-4-yl]-N-[5-(6-ethoxypyrazin-2-yl)-2-pyridinyl]oxane-4-carboxamide
4-[2-(cyclopropanesulfonamido)pyrimidin-4-yl]-N-[5-(6-ethoxypyrazin-2-yl)pyridin-2-yl]oxane-4-carboxamide
CTP synthase 1 inhibitor, antineoplastic, STP 938, CTPS1-IN-2, QG9C9SZZ3T
Dencatistat (formerly known as STP938) is a first-in-class, orally bioavailable cancer drug designed to target specific blood cancers and solid tumours
Dencatistat is an orally bioavailable, small molecule inhibitor of cytidine triphosphate synthase 1 (CTPS1), with potential antineoplastic activity. Upon oral administration, dencatistat targets, binds to and inhibits the activity of CTPS1, thereby decreasing the production of cytidine triphosphate (CTP), an essential building block of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). This may disrupt DNA and RNA synthesis and trigger apoptosis. CTPS1, an enzyme that catalyzes the rate-limiting step in pyrimidine synthesis, plays an important and nonredundant role in B-cell and T-cell proliferation. CTPS1 is required for rapid cell division in certain types of cancers that arise from blood cells.
Mechanism of Action
It works by inhibiting CTPS1 (Cytidine Triphosphate Synthase 1), a key enzyme that cancer cells “addicted” to for DNA synthesis.
- Targeted approach: It aims to kill cancer cells while leaving healthy cells unharmed by exploiting a “synthetic lethal” dependency in certain tumours.
- Precision medicine: It is particularly being tested in patients whose tumours lack CTPS2, a backup enzyme, which makes them highly vulnerable to dencatistat.
🏥 Clinical Status
Developed by Step Pharma, the drug is currently in several clinical trials:
- Lymphoma: Phase 1/2 trials for relapsed or refractory T-cell and B-cell lymphomas.
- Solid Tumours: Phase 1 studies for patients with solid tumours, specifically ovarian and endometrial cancers.
- Essential Thrombocythaemia: A Phase 1b trial for this blood disorder was initiated in 2025.
- Orphan Drug Status: Received FDA Orphan Drug Designation for T-cell lymphoma in May 2025.
- OriginatorStep Pharma
- ClassAnti-inflammatories; Antineoplastics; Antirheumatics; Antithrombotics; Small molecules
- Mechanism of ActionCTPS1 protein inhibitors
- Orphan Drug StatusYes – T-cell lymphoma
- Phase I/IIB-cell lymphoma; T-cell lymphoma
- Phase ISolid tumours; Thrombocytosis
- PreclinicalGraft-versus-host disease; Inflammation
- No development reportedRheumatoid arthritis
- 23 Feb 2026Step Pharma plans phase II trials for Gynaecological cancer
- 10 Feb 2026Preclinical development in Inflammation is till ongoing in France (PO) (Step Pharma pipeline, February 2026)
- 15 Oct 2025Adverse event data from a phase I/II trial in T-cell lymphoma/B-cell lymphoma released by Step Pharma
SYN
US20250177394, Compound CTPS1-IA
PAT
PAT
A. Preparation of Active Ingredient
20 Example A1 – Preparation of crude 4-(2-(cyclopropanesulfonamido)pyrimidin-4-yl)-N-(5- (6-ethoxypyrazin-2-yl)pyridin-2-yl)tetrahydro-2H-pyran-4-carboxamide
Step 4 – Preparation of crude 4-(2-(cyclopropanesulfonamido)pyrimidin-4-yl)-N-(5-(6- ethoxypyrazin-2-yl)pyridin-2-yl)tetrahydro-2H-pyran-4-carboxamide
4-(2-(cyclopropanesulfonamido)pyrimidin-4-yl)tetrahydro-2H-pyran-4-carboxylate (1.76 kg, 5.15 mol, 1.00 equiv.) and 5-(6-ethoxypyrazin-2-yl)pyridin-2-amine (1.22 kg, 5.65 mol, 1.10 equiv.) were suspended in a mixture of THF (27.1 L, 15.5 rel. vol.) and DMSO (2.63 L, 1.50 rel. vol.) and stirred until the solids were evenly dispersed. The mixture was concentrated by
STP-P3718PCT
102
distillation at atmospheric pressure and approximately 70 oC to a volume of 15 L. The temperature was adjusted to 20 ± 5 oC, potassium tert-butoxide (6.92 kg 20 wt% solution in THF, 12.3 mol, 2.40 equiv.) was added over 1 h and the reaction mixture stirred at 20 ± 5 oC for 70 minutes until completion. THF (880 mL, 0.500 rel vol.) was charged, followed by acetic acid (780 5 mL, 820 g, 13.6 mol, 2.64 equiv.) over 10 minutes, followed by methanol (4.40 L, 2.50 rel. vol.), followed by water (13.2 L, 7.50 rel. vol.) over 35 minutes. The mixture was stirred at 20 ± 5 oC for 15 minutes and then 16 h at 0 ± 5 oC. The resulting suspension was filtered and washed with water (2 × 8.80 L, 2 × 5.00 rel. vol.), followed by methanol (4.40 L, 2.50 rel. vol.) The filter cake was dried at 35 oC under a flow of nitrogen for 20 h to afford crude 4-(2-10 (cyclopropanesulfonamido)pyrimidin-4-yl)-N-(5-(6-ethoxypyrazin-2-yl)pyridin-2-yl)tetrahydro- 2H-pyran-4-carboxamide (“CTPS1-IA”).
PAT
- Aminopyrimidine derivatives as CTPS1 inhibitorsPublication Number: JP-7428692-B2Priority Date: 2018-03-23Grant Date: 2024-02-06
- Aminopyrimidine derivatives as ctps1 inhibitorsPublication Number: EP-3768674-A1Priority Date: 2018-03-23
- Aminopyrimidine derivative as a CTPS1 inhibitorPublication Number: JP-2021518436-APriority Date: 2018-03-23
- Aminopyrimidine derivatives as ctps1 inhibitorsPublication Number: EP-3768674-B1Priority Date: 2018-03-23Grant Date: 2024-01-03
- Aminopyrimidine derivatives as CTPS1 inhibitorsPublication Number: CN-111868051-APriority Date: 2018-03-23
- Aminopyrimidine derivatives as CTPS1 inhibitorsPublication Number: ES-2974445-T3Priority Date: 2018-03-23Grant Date: 2024-06-27
- CompoundsPublication Number: US-2021024507-A1Priority Date: 2018-03-23
- CompoundsPublication Number: US-2021387965-A1Priority Date: 2018-10-23
- CompoundsPublication Number: US-2023192673-A1Priority Date: 2018-06-04
- Aminopyrimidine derivatives as CTPS1 inhibitorsPublication Number: CN-111868051-BPriority Date: 2018-03-23Grant Date: 2024-04-09
- Aminopyrimidine derivatives as ctps1 inhibitorsPublication Number: WO-2019180244-A1Priority Date: 2018-03-23
- Aminopyrimidine derivatives as ctps1 inhibitorsPublication Number: WO-2019179652-A1Priority Date: 2018-03-23
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References
////////dencatistat, anax lab, CTP synthase 1 inhibitor, antineoplastic, STP 938, CTPS1-IN-2, QG9C9SZZ3T
Darlifarnib
Darlifarnib
CAS 2939824-30-1
MF C29H20N6O MW 468.51
14-amino-14-(3-methylimidazol-4-yl)-7-oxa-19-azapentacyclo[13.6.2.12,6.19,13.018,22]pentacosa-1(22),2(25),3,5,9,11,13(24),15(23),16,18,20-undecaene-10,20-dicarbonitrile
farnesyl transferase inhibitor, antineoplastic, KO-2806, KO 2806, T206317
Darlifarnib (KO-2806) is an investigational, orally active next-generation farnesyl transferase inhibitor (FTI) being developed by Kura Oncology to treat solid tumors, such as clear cell renal cell carcinoma (ccRCC). It inhibits the enzyme farnesyl transferase, blocking KRAS and mTORC1 signaling to induce tumor regression. It is often combined with other agents to overcome resistance.
Key Details About Darlifarnib
- Mechanism of Action: As a FTI, darlifarnib binds to and inhibits farnesyl transferase, which prevents the activation of RAS oncogenes and inhibits downstream mTORC1 signaling, leading to tumor cell death.
- Target Indications: Preclinical and early clinical data show potential in treating KRAS-mutant cancers, including non-small cell lung cancer (NSCLC), colorectal cancer (CRC), and clear cell renal cell carcinoma (ccRCC).
- Combination Therapy: Data from the Phase 1 FIT-001 trial (presented in April 2026) showed that combining darlifarnib with the TKI cabozantinib demonstrated robust activity in patients with pretreated, advanced ccRCC.
- Overcoming Resistance: Darlifarnib is designed to re-sensitize tumors that have become resistant to prior therapies, such as RAS inhibitors and tyrosine kinase inhibitors (TKIs).
- Status: It is an investigational drug and not yet FDA-approved.
- OriginatorKura Oncology
- ClassAntineoplastics; Small molecules
- Mechanism of ActionFarnesyltranstransferase inhibitors
- Phase IAdenocarcinoma; Colorectal cancer; Non-small cell lung cancer; Renal cell carcinoma; Solid tumours
- 12 Jan 2026Kura Oncology plans the one or more expansion cohorts of KO 2806 and cabozantinib in patients with advanced renal cell carcinoma in the first half of 2026
- 22 Oct 2025Pharmacodynamics data from a preclinical trial in Cancer presented at the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics 2025 (AACR-NCI-EORTC-2025)
- 18 Oct 2025Adverse events and efficacy data from a phase I trial in Non-small cell lung cancer, Renal cell carcinoma, Adenocarcinoma released by Kura Oncology
PAT
PAT
Step A: Preparation of (058-1)
Step B: Preparation of (058-2)
Step C: Preparation of (rac)-3-amino-3-(1-methyl-1H-imidazol-5-yl)-6-oxa-2(4,6)-quinolina-1,4(1,3)-dibenzenacyclohexaphane-22,44-dicarbonitrile (rac-058)
Step D: Preparation of (S)-3-amino-3-(1-methyl-1H-imidazol-5-yl)-6-oxa-2(4,6)-quinolina-1,4(1,3)-dibenzenacyclohexaphane-22,44-dicarbonitrile ((S)-058)
PAT
- Macrocyclic compounds and compositions, and methods of preparing and using the samePublication Number: US-2023322711-A1Priority Date: 2021-11-30
- Macrocyclic compounds and compositions, and methods of preparing and using the samePublication Number: US-12018011-B2Priority Date: 2021-11-30Grant Date: 2024-06-25
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References
/////////////darlifarnib, ANAX LAB, farnesyl transferase inhibitor, antineoplastic, KO-2806, KO 2806, T206317
Daraxonrasib
Daraxonrasib
CAS 2765081-21-6
MFC44H58N8O5S MW811.0 g/mol
trans-(1S,2S)-N-[(7S,13S)-21-ethyl-20-[2-[(1S)-1-methoxyethyl]-5-(4-methylpiperazin-1-yl)-3-pyridinyl]-17,17-dimethyl-8,14-dioxo-15-oxa-4-thia-9,21,27,28-tetrazapentacyclo[17.5.2.12,5.19,13.022,26]octacosa-1(25),2,5(28),19,22(26),23-hexaen-7-yl]-2-methylcyclopropane-1-carboxamide
Kirsten rat sarcoma viral oncogene homolog inhibitor, antineoplastic, RMC-6236, RMC 6236, B6T47Y2UAP, RAS-IN-2,
Daraxonrasib (formerly RMC-6236) is an investigational, orally administered “molecular glue” RAS inhibitor developed by Revolution Medicines for treating advanced solid tumors with RAS mutations, particularly metastatic pancreatic cancer. April 2026 Phase 3 trials showed it significantly improves survival, demonstrating high potential as a first-line treatment.
Key Clinical Findings and Updates (as of April 2026):
- Mechanism: It acts as a RAS(ON) inhibitor, targeting mutated and wild-type RAS proteins (
) to disrupt cancer signaling.
- Breakthrough Results: Data from the RASolute 302 trial showed a substantial survival benefit in patients with previously treated metastatic pancreatic ductal adenocarcinoma (PDAC).
- High Response Rates: In trials, daraxonrasib combined with chemotherapy showed a 58% confirmed objective response rate (ORR) and 84% progression-free survival (PFS) at 6 months in untreated RAS-mutant metastatic pancreatic cancer.
- Safety Profile: Generally well-tolerated, with side effects including rash, diarrhea, stomatitis, and nausea.
- Recognition: Named the “2025 Molecule of the Year” by Drug Hunter for its, novel mechanism and clinical potential.
Daraxonrasib is currently being studied in the Phase 3 RASolute 303 trial for first-line treatment of pancreatic cancer.
Daraxonrasib (RMC-6236) is a RAS inhibitor drug. It is undergoing testing by Revolution Medicines to treat advanced solid tumors with RAS mutations, especially metastatic pancreatic ductal adenocarcinoma (PDAC) containing KRAS G12X mutations.[1] It received a breakthrough therapy designation from the U.S. Food and Drug Administration.[2]
Daraxonrasib is orally active and multi-selective RAS inhibitor. It uses a tri-complex mechanism to target the active, GTP-bound form of RAS proteins, including mutant and wild-type forms. Unlike conventional RAS inhibitors, it first binds to the chaperone-like protein cyclophilin A to form a complex, which then attaches to active RAS. This interaction blocks downstream effector binding and inhibits oncogenic signaling.[3]
In 2026, Daraxonrasib clinical trial completed a phase 3 clinical trial (RASolute 302) to assess efficacy compared to standard-of-care chemotherapy.[4] The trial met all primary and key secondary endpoints, including progression-free survival (PFS). The company reported median survival of 13.2 months with daraxonrasib vs. 6.7 months with standard chemotherapy. The hazard ratio for death was 0.40 (a 60% reduction in risk of death; p < 0.0001). Daraxonrasib was generally well tolerated with a manageable safety profile and no new safety signals.[5]
PAT
PAT
PATENT ATTORNEY DOCKET: 51432-038WO2 Part 4 – Purification of Compound A – (1S,2S)-N-[(7S,13S)-21-ethyl-20-{2-[(1S)-1- methoxyethyl]-5-(4-
1.0equiv) at 25°C. The resulting suspension was stirred until solids were completely dissolved. The resulting methanol solution was filtered through microporous filter and transferred to another reactor. Then the reactor temperature was maintained at 25°C and slowly water (2.41kg, 1.0 V) water was added over a period of 30 minutes. The resulting cloudy solution was stirred for another 30 minutes at 25°C. Then a solution of methanol and water (3.42kg, 1:2, v/v) slowly over 1 hour. The resulting suspension was stirred for 2 hours at 25°C. Again, to the suspension additional water (2.48kg) slowly added over 1 hour. The final, suspension was stirred for additional 1 hour. Water (9.29kg, 3.75 V) was added to the suspension slowly over 2 hours and the mixture was stirred for at least for 16 hours at 25°C. The resulting suspension was filtered and washed with mixed solvent water: MeOH (3:2, v/v) twice (2x 2.2 kg), followed by water (4.91kg) washing. The wet cake was dried under reduced pressure and controlled humidity (temperature: 25 ± 5 ˚C, vacuum ≥ -0.085 MPa, humidity: 10%~20%) for 37 hours to afford Compound A as a white solid (2.68 kg, 99.4% a/a purity, 93.0% w/w assay, KF: 6.7%, 3.07 mol, 92% yield, Table 27).
PAT
- Synthesis of ras inhibitorsPublication Number: WO-2024216017-A2Priority Date: 2023-04-14
- Macrocycle compounds useful as kras inhibitorsPublication Number: WO-2024008834-A1Priority Date: 2022-07-08
- Ras inhibitorsPublication Number: US-11690915-B2Priority Date: 2020-09-15Grant Date: 2023-07-04
- Ras inhibitorsPublication Number: US-2023226186-A1Priority Date: 2020-09-15
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References
References
- Cregg J, Edwards AV, Chang S, Lee BJ, Knox JE, Tomlinson AC, et al. (March 2025). “Discovery of Daraxonrasib (RMC-6236), a Potent and Orally Bioavailable RAS(ON) Multi-selective, Noncovalent Tri-complex Inhibitor for the Treatment of Patients with Multiple RAS-Addicted Cancers”. Journal of Medicinal Chemistry. 68 (6): 6064–6083. doi:10.1021/acs.jmedchem.4c02314. PMID 40056080.
- Sava J (July 1, 2025). “Daraxonrasib Earns FDA Breakthrough Status in Pancreatic Cancer”. Targeted Oncology. Retrieved October 12, 2025.
- Jiang J, Jiang L, Maldonato BJ, Wang Y, Holderfield M, Aronchik I, et al. (June 2024). “Translational and Therapeutic Evaluation of RAS-GTP Inhibition by RMC-6236 in RAS-Driven Cancers”. Cancer Discovery. 14 (6): 994–1017. doi:10.1158/2159-8290.CD-24-0027. PMC 11149917. PMID 38593348.
- Clinical trial number NCT05379985 at ClinicalTrials.gov
- Mast J (2026-04-13). “Revolution Medicines touts ‘unprecedented’ data for pancreatic cancer pill”. STAT. Retrieved 2026-04-13.
| Clinical data | |
|---|---|
| Other names | RMC-6236 |
| Identifiers | |
| IUPAC name | |
| CAS Number | 2765081-21-6 |
| PubChem CID | 164726578 |
| IUPHAR/BPS | 13368 |
| ChemSpider | 115275938 |
| UNII | B6T47Y2UAP |
| KEGG | D13265 |
| ChEBI | CHEBI:746946 |
| Chemical and physical data | |
| Formula | C44H58N8O5S |
| Molar mass | 811.06 g·mol−1 |
| 3D model (JSmol) | Interactive image |
| SMILES | |
| InChI | |
//////////daraxonrasib, anax labs, Kirsten rat sarcoma viral oncogene homolog inhibitor, antineoplastic, RMC-6236, RMC 6236, B6T47Y2UAP, RAS-IN-2,
Dabogratinib
Dabogratinib
CAS 2800223-30-5
MF C25H24Cl2N6O3S, 559.5 g/mol
5-[(1R)-1-(3,5-dichloro-4-pyridinyl)ethoxy]-3-[6-(2-methylsulfonyl-2,6-diazaspiro[3.3]heptan-6-yl)-3-pyridinyl]-1H-indazole
(R)-5-(1-(3,5-Dichloropyridin-4-yl)ethoxy)-3-(6-(6-(methylsulfonyl)-2,6-diazaspiro[3.3]heptan-2-yl)pyridin-3-yl)-1H-indazole
[6-(5-{5-[(1R)-1-(3,5-dichloropyridin-4-yl)ethoxy]-1H-indazol-3-yl}pyridin-2-yl)-2,6-diazaspiro[3.3]heptan-2-yl](methyl)-λ6sulfanedioneTYRA-300
fibroblast growth factor receptor inhibitor, antineoplastic, TYRA-300, TYRA 300, A1AV2, FH245S2JZJ
Dabogratinib (TYRA-300) is an orally active, highly selective inhibitor of fibroblast growth factor receptor 3 (FGFR3), designed to treat cancers with FGFR3 alterations and genetic diseases like achondroplasia. It shows potent tumor growth inhibition in preclinical studies and early phase I/II (SURF301) clinical activity against advanced bladder cancer and metastatic urothelial carcinoma.
Key Aspects of Dabogratinib (TYRA-300)
- Mechanism: It acts as a selective inhibitor of FGFR3 with a high selectivity over other isoforms (FGFR1/2/4), which helps minimize toxicity.
- Target Indications: It is being developed for FGFR3-mutant cancers, including non-muscle invasive bladder cancer (NMIBC) and metastatic urothelial carcinoma, as well as pediatric achondroplasia.
- Preclinical Performance: Studies showed that it reduces tumor growth and drives tumor regression, especially in xenograft models with FGFR3-activating mutations (e.g., S249C).
- Clinical Trials:
- SURF301 (Phase I/II): Ongoing study, Tyra Biosciences reported early efficacy in patients with advanced metastatic urothelial carcinoma (mUC) harboring FGFR3 mutations/fusions.
- SURF302 (Phase II): Evaluating the drug in patients with FGFR3-altered, low-grade, intermediate-risk non–muscle invasive bladder cancer (NMIBC).
- BEACH301 (Phase II): Studying the drug in children with achondroplasia, as it is designed to increase long-bone growth.
- Properties: It is an orally bioavailable molecule with an IC50 of
for FGFR3.
Dabogratinib is an orally bioavailable, selective inhibitor of human fibroblast growth factor receptor 3 (FGFR3), with potential antineoplastic activity. Upon oral administration, dabogratinib specifically targets and binds to certain FGFR3 activating gene alterations, and specifically the gatekeeper mutants V555L/M. This blocks FGFR3-mediated signaling and leads to an inhibition of tumor cell proliferation in FGFR3-overexpressing cells. FGFR3, a receptor tyrosine kinase, is involved in angiogenesis and in the proliferation, differentiation, and survival of tumor cells. FGFR3 expression is associated with poor prognosis. It is overexpressed by certain tumor cell types.
- Efficacy and Safety of TYRA-300 in Participants With FGFR3 Altered Low Grade, Intermediate Risk Non-Muscle Invasive Bladder CancerCTID: NCT06995677Phase: Phase 2Status: RecruitingDate: 2026-04-09
- A Study of TYRA-300 in Children With Achondroplasia: BEACH301CTID: NCT06842355Phase: Phase 2Status: RecruitingDate: 2026-03-06
- Safety and Preliminary Anti-Tumor Activity of TYRA-300 in Advanced Urothelial Carcinoma and Other Solid Tumors With FGFR3 Gene AlterationsCTID: NCT05544552Phase: Phase 1/Phase 2Status: Active, not recruitingDate: 2026-01-12
PAT
Example 46. 5-[(1R)-1-(3,5-dichloro-4-pyridyl)ethoxy]-3-[6-(2-methylsulfonyl-2,6-diazaspiro[3.3]heptan-6-yl)-3-pyridyl]-1H-indazole
(5-[(1R)-1-(3,5-dichloro-4-pyridyl)ethoxy]-3-[6-(2-methylsulfonyl-2,6-diazaspiro[3.3]heptan-6-yl)-3-pyridyl]-1H-indazole. Triethylamine (20.5 uL, 0.148 mmol, 1.2 equiv) and methylsulfonyl chloride (9.5 uL, 0.123 mmol, 1.0 equiv) were sequentially added at room temperature to a solution of example 45 (59.0 mg, 0.123 mmol, 1 equiv) in anhydrous THE (3 mL). After stirring for 2 hours, the reaction mixture was concentrated under reduced pressure and diluted with saturated brine (30 mL) and dichloromethane (30 mL). The layers were separated. The organic layer was dried over sodium sulfate, filtered and concentrated under reduced pressure on to Celite (1 g). The product was purified on an Interchim automated chromatography system (RediSep Rf Gold HP C18, 15.5 g cartridge), eluting with a gradient of 0 to 100% acetonitrile in water. The fractions containing product were collected and lyophilized to give a white solid (45.0 mg, 65% yield). Analysis: LCMS: m/z=559.2 (M+H); 1H NMR (400 MHz, DMSO-d6) δ 13.02 (br s, 1H), 8.59 (s, 2H), 8.52 (dd, J=0.6, 2.2 Hz, 1H), 7.87 (dd, J=2.4, 8.6 Hz, 1H), 7.46 (d, J=8.9 Hz, 1H), 7.16 (d, J=2.1 Hz, 1H), 7.09 (dd, J=2.3, 9.0 Hz, 1H), 6.54 (dd, J=0.4, 8.6 Hz, 1H), 6.10 (q, J=6.6 Hz, 1H), 4.17 (s, 4H), 4.12 (s, 4H), 3.03 (s, 3H), 1.76 (d, J=6.6 Hz, 3H).
PAT
- Indazole compoundsPublication Number: TW-202241906-APriority Date: 2020-12-30
- Indazole compounds as kinase inhibitorsPublication Number: EP-4271673-A1Priority Date: 2020-12-30
- Indazole compounds as kinase inhibitorsPublication Number: WO-2022147246-A1Priority Date: 2020-12-30
- Indazole compounds as kinase inhibitorsPublication Number: US-12264149-B2Priority Date: 2020-12-30Grant Date: 2025-04-01
- Polymorphic compounds and uses thereofPublication Number: EP-4547670-A1Priority Date: 2022-06-29
- Indazole compounds as kinase inhibitorsPublication Number: US-12071428-B2Priority Date: 2020-12-30Grant Date: 2024-08-27
- Indazole Compounds as Kinase InhibitorsPublication Number: KR-20230152654-APriority Date: 2020-12-30
- Indazole compounds as kinase inhibitorsPublication Number: US-2024109865-A1Priority Date: 2020-12-30
- Indazole compounds as kinase inhibitorsPublication Number: US-2024208941-A1Priority Date: 2020-12-30
- Tyra-300 (5-[(1r)-1-(3,5-dichloro-4-pyridyl)ethoxy]-3-[6-(2-methylsulfonyl-2,6-diazaspiro[3.3]heptan-6-yl)-3-pyridyl]-1h-indazole ) in combination with a pd-1 or pd-l1 antagonist for use in the treatment of cancerPublication Number: WO-2025064744-A1Priority Date: 2023-09-22
- Fgfr inhibitors and methods of use thereofPublication Number: WO-2025061029-A1Priority Date: 2023-09-18
- Polymorphic compounds and uses thereofPublication Number: AU-2023300357-A1Priority Date: 2022-06-29
- Polymorphic compounds and uses thereofPublication Number: WO-2024006883-A1Priority Date: 2022-06-29
- Polymorphic compounds and uses thereofPublication Number: TW-202408493-APriority Date: 2022-06-29
ADVT
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References
Publication Name: Journal of Medicinal Chemistry
Publication Date: 2024-09-11
PMID: 39258897
DOI: 10.1021/acs.jmedchem.4c01531
////////dabogratinib, anax lab, fibroblast growth factor receptor inhibitor, antineoplastic, TYRA-300, TYRA 300, A1AV2, FH245S2JZJ
Claturafenib
Claturafenib
CAS 2754408-94-9
MF C18H15Cl2F2N5O3S MW490.3 g/mol
N-[2-chloro-3-[(5-chloro-3-methyl-4-oxoquinazolin-6-yl)amino]-4-fluorophenyl]-3-fluoroazetidine-1-sulfonamide
N-{2-chloro-3-[(5-chloro-3-methyl-4-oxo-3,4-dihydroquinazolin-6-yl)amino]-4-fluorophenyl}-3-fluoroazetidine-1-sulfonamide
B-Raf (BRAF) inhibitor, antineoplastic, PF-07799933, PF 07799933, ARRY440, ARRY 440, PC35M52J8T
Claturafenib (development code PF-07799933) is an investigational cancer drug currently being developed by Pfizer. It is a selective, orally active pan-mutant BRAF inhibitor designed to treat advanced solid tumours with specific genetic alterations
Mechanism of Action
Claturafenib belongs to a class of drugs that target the MAPK/ERK signaling pathway, which is often hijacked by cancer cells to promote uncontrolled growth.
- Pan-Mutant Inhibition: Unlike first-generation BRAF inhibitors, claturafenib inhibits multiple classes of BRAF mutations, including Class 1 (V600), Class 2, and Class 3 alterations.
- Brain-Penetrant: It is designed to cross the blood-brain barrier, allowing it to potentially treat brain metastases or primary brain tumours.
- Dimer Disruption: It works by disrupting the formation of BRAF-containing dimers, which are responsible for signaling in many resistant or non-V600 mutant cancers.
- Selectivity: It is highly selective for mutant BRAF, significantly sparing normal (wild-type) cells to reduce off-target side effects.
🏥 Clinical Status
As of April 2026, claturafenib is in Phase 1 clinical trials.
- Target Indications: Advanced solid malignancies, including melanoma, colorectal cancer (CRC), and non-small cell lung cancer (NSCLC).
- Combination Therapy: It is being studied both as a single agent (monotherapy) and in combination with other drugs like binimetinib (a MEK inhibitor) or cetuximab (an EGFR inhibitor).
- Ongoing Study: Clinical trial NCT05355701 is currently evaluating its safety, dosage, and efficacy in patients whose disease has progressed on other treatments.
- A Study to Learn About the Study Medicine Called PF-07799933 in People With Advanced Solid Tumors With BRAF Alterations.CTID: NCT05355701Phase: Phase 1Status: RecruitingDate: 2026-03-27
- A Study to Learn About the Study Medicine Called PF-07799544 as Monotherapy or in Combination in People With Advanced Solid TumorsCTID: NCT05538130Phase: Phase 1Status: RecruitingDate: 2026-03-27
Claturafenib is an orally bioavailable class 1 and 2 inhibitor of the serine/threonine-protein kinase B-raf (BRAF) protein, with potential antineoplastic activity. Upon oral administration, claturafenib selectively binds to and inhibits the activity of class 1 and 2 BRAF alterations. This inhibits the proliferation of tumor cells which express these BRAF alterations. BRAF, a member of the raf family of serine/threonine protein kinases, plays a role in the regulation of mitogen-activated protein kinase (MAPK) and extracellular signal-regulated kinase (ERK) signaling pathways, which may be constitutively activated due to BRAF gene mutations. Mutated forms and fusions of BRAF are associated with a number of neoplastic diseases.
| Property | Value |
|---|---|
| Molecular Formula |        |
| Molecular Weight | 490.31 g/mol |
| CAS Number | 2754408-94-9 |
| Other Names | ARRY-440, PF07799933 |
📍 Note: Claturafenib is an investigational compound and has not yet been approved by the FDA or other regulatory agencies for general use
SYN
SYN
Example 126
N-(2-chloro-3-((5-chloro-3-methyl-4-oxo-3,4-dihydroquinazolin-6-yl)amino)-4-fluorophenyl)-3-fluoroazetidine-1-sulfonamide
PAT
- 4-oxo-3,4-dihydroquinazolinon compounds for the treatment of braf-associated diseases and disordersPublication Number: CA-3186343-A1Priority Date: 2020-06-09
- Compounds for the treatment of BRAF-associated diseases and disordersPublication Number: US-12303509-B2Priority Date: 2020-06-09Grant Date: 2025-05-20
- 3,4-dihydro-2,7-naphthyridine-1,6(2H,7H)-dione compound as MEK inhibitorPublication Number: CN-117561255-APriority Date: 2021-03-31
- 4-oxo-3,4-dihydroquinazolinone compounds for the treatment of BRAF-related diseases and disordersPublication Number: KR-20230019944-APriority Date: 2020-06-09
- Compounds for the treatment of braf-associated diseases and disordersPublication Number: US-2022288074-A1Priority Date: 2020-06-09
- 4-oxo-3, 4-dihydroquinazolinone compounds for the treatment of BRAF related diseases and disordersPublication Number: CN-116096710-APriority Date: 2020-06-09
- 4-oxo-3,4-dihydroquinazolinon compounds for the treatment of braf-associated diseases and disordersPublication Number: EP-4161907-A1Priority Date: 2020-06-09
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Discovery Solutions, Supporting the chemistry needs of clients in the Medical, Analytical and Bio Sciences
Development Solutions, Developing from Lab scale to PR&D, Kilo Scale-ups and Commercial Scales
SEE MORE………Integrated Solutions, Manufacturing Solutions, Products,
Can’t Find? Let’s Connect
Phone : +91 897704 2010 / +91 9177075735, Email : info@anaxlab.com
#MedicinalChemistry, #DrugDiscovery, #OrganicSynthesis, #ChemicalLibrary, #BuildingBlocks, #SARStudies, #ChemistryInnovation, #medchem, #Drugdevelopment, #Biotech, #Biotechnology, #AnaxLaboratories, #Pharma
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References
////////claturafenib, ANAX, B-Raf (BRAF) inhibitor, antineoplastic, PF-07799933, PF 07799933, ARRY440, ARRY 440, PC35M52J8T
New Drug Approvals 
